Hyliion
USX-1 Defiant USV chosen as platform for KARNO power-gen sea trial - News
May 19, 2026AUSTIN, Tex. Hyliion Holdings, which develops modular power plant technology, announced that the U.S. Navy’s Office of Naval Research (ONR) and the Defense Advanced Research Projects Agency (DARPA) have chosen the USX-1 Defiant -- a fully autonomous medium uncrewed surface vessel (USV) -- as a candidate test vessel for Hyliion’s KARNO onboard power-generation technology.
